Help with 1845/1845 RPD and a 1853 Not sure half dimes Hey guys I have a couple coins I would like you to look at. one I know its a 1845 RPD but would like more info on it like rarity or anything really. The other is a 1853 half dime with something on the 3 not real sure what it is maybe another number maybe not. Let me know what you think. Also what can I do to get the old stuff out of the date on the 45? It looks like alot of dirt or just basic crud.